import java.util.logging.Handler;

/**
 * 一张纸的厚度大约是0.08mm，对折多少次之后能达到珠穆朗玛峰的高度（8848.13米）？
 * @author Lenovo
 *
 */
public class 折纸 {
	public static void main(String[] args) {
		double height = 8848130;
		double h = 0.08;
		int i = 1;
		for (; (h *= 2) < height;) {
			i++;
		}
		System.out.println(i);
	}
}
